Magnetizing device

Abstract

A magnetizing device for magnetizing a to-be-magnetized object is disclosed. The magnetizing device includes a first magnetic-conducting element, a second magnetic-conducting element and at least a magnetic element. The magnetic element is disposed between the first magnetic-conducting element and the second magnetic-conducting element. A closed magnetic flux loop is formed between the first magnetic-conducting element, the first magnetic element and the second magnetic-conducting element so as to allow the first to-be-magnetized object to be magnetized.

1 . A magnetizing device for magnetizing a first to-be-magnetized object, the magnetizing device comprising:
 a first magnetic-conducting element;   a second magnetic-conducting element; and   a first magnetic element comprising a fixed magnetic field, the first magnetic element being disposed between the first magnetic-conducting element and the second magnetic-conducting element;   wherein a closed magnetic flux loop is formed between the first magnetic-conducting element, the first magnetic element and the second magnetic-conducting element so as to allow the first to-be-magnetized object to be magnetized.   
   
   
       2 . The magnetizing device according to  claim 1 , wherein a first space is formed between the first magnetic-conducting element and the first magnetic element, and the first to-be-magnetized object is disposed and magnetized in the first space. 
   
   
       3 . The magnetizing device according to  claim 2 , wherein the magnetizing device further comprises a second magnetic element disposed between the first magnetic-conducting element and the first magnetic element, and the first space is disposed between the second magnetic element and the first magnetic element. 
   
   
       4 . The magnetizing device according to  claim 2 , wherein the magnetizing device is further for magnetizing a second to-be-magnetized object, and a second space is formed between the first magnetic element and the second magnetic-conducting element, and the second to-be-magnetized object is disposed and magnetized in the second space. 
   
   
       5 . The magnetizing device according to  claim 4 , wherein the first to-be-magnetized object, the second to-be-magnetized object, the first magnetic-conducting element and the second magnetic-conducting element comprise magnetic-conducting materials; the first magnetic element is a permanent magne. 
   
   
       6 . The magnetizing device according to  claim 4 , wherein the magnetizing device further comprises a second magnetic element disposed between the first magnetic-conducting element and the first magnetic element, and the first space is disposed between the second magnetic element and the first magnetic element. 
   
   
       7 . The magnetizing device according to  claim 1 , wherein a second space is formed between the first magnetic element and the second magnetic-conducting element, and the first to-be-magnetized object is disposed and magnetized in the second space. 
   
   
       8 . The magnetizing device according to  claim 1 , wherein the magnetizing device has an annular shape, the first magnetic element is disposed around an exterior of the first magnetic-conducting element, and the second magnetic-conducting element is further disposed around an exterior of the first magnetic element. 
   
   
       9 . The magnetizing device according to  claim 8 , wherein the first magnetic-conducting element is a magnetic-conducting column, and the second magnetic-conducting element is a magnetic-conducting ring. 
   
   
       10 . The magnetizing device according to  claim 1 , wherein the magnetizing device has a flat and rectangular shape, the first magnetic-conducting element and the second magnetic-conducting element are stacked together, and the first magnetic element is disposed on the second magnetic-conducting element and between the first magnetic-conducting element and the second magnetic-conducting element. 
   
   
       11 . The magnetizing device according to  claim 10 , wherein the first magnetic-conducting element and the second magnetic-conducting element are separated easily for taking out the first to-be-magnetized magnet there between after finishing a magnetizing process. 
   
   
       12 . The magnetizing device according to  claim 10 , wherein both of the first magnetic-conducting element and the second magnetic-conducting element are magnetic-conducting blocks, and the first magnetic-conducting element and the second magnetic-conducting element are coupled to each other correspondingly. 
   
   
       13 . The magnetizing device according to  claim 1 , wherein the closed magnetic flux loop comprises at least two poles. 
   
   
       14 . The magnetizing device according to  claim 1 , wherein the first magnetic-conducting element and the second magnetic-conducting element comprise magnetic-conducting materials. 
   
   
       15 . The magnetizing device according to  claim 1 , wherein the first to-be-magnetized object comprises a magnetic material. 
   
   
       16 . The magnetizing device according to  claim 1 , wherein a shape and size of the first space is designed to according to the first to-be-magnetized object. 
   
   
       17 . The magnetizing device according to  claim 1 , wherein the first magnetic element is a permanent magnet with a plurality of magnetic poles and the magnetic poles are N and S poles arranged alternately. 
   
   
       18 . The magnetizing device according to  claim 1 , wherein the first magnetic element has a fixed magnetic field, and the intensity of the magnetic field is greater than or equal to 800 kA/m. 
   
   
       19 . The magnetizing device according to  claim 1 , wherein the magnetizing device is applied to a machine of automation or semi-automation so as to introduce into the first to-be-magnetized object and take out after the to-be-magnetized object being magnetized and join sequential procedures of manufacturing a rotor of a fan.